Anthropology / English teaching jobs? (Rio de Janeiro)

I am a native speaking English teacher with a BA in Anthropology looking for more work. I was born here in Rio so have full citizenship and can work without a visa, but also have dual citizenship with the US where I was raised. My Portuguese is efficient for basic conversations but improving rapidly. Especially considering I live with two Brazilian girls and practice almost non stop.

I am looking for work utilizing my degree in some way, be it teaching or anything else. I have been teaching English for 8 months, but either need more students or a different job.